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https://sourceware.org/git/glibc.git
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72 lines
2.0 KiB
ArmAsm
72 lines
2.0 KiB
ArmAsm
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/* Copyright (C) 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define _ERRNO_H
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#include <bits/errno.h>
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#include <bp-asm.h>
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#include <bp-sym.h>
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.globl C_SYMBOL_NAME(errno)
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.globl syscall_error
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#undef syscall_error
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#ifdef NO_UNDERSCORES
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__syscall_error:
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#else
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syscall_error:
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#endif
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#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
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/* We translate the system's EWOULDBLOCK error into EAGAIN.
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The GNU C library always defines EWOULDBLOCK==EAGAIN.
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EWOULDBLOCK_sys is the original number. */
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cmpq $EWOULDBLOCK_sys, %rax /* Is it the old EWOULDBLOCK? */
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jne notb /* Branch if not. */
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movq $EAGAIN, %rax /* Yes; translate it to EAGAIN. */
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notb:
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#endif
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#ifndef PIC
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# ifndef _LIBC_REENTRANT
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movq %rax, C_SYMBOL_NAME(errno)
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# else
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pushq %rax
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PUSH_ERRNO_LOCATION_RETURN
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call BP_SYM (__errno_location)
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POP_ERRNO_LOCATION_RETURN
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popq %rcx
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movq %rcx, (%rax)
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# endif
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#else
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# ifndef _LIBC_REENTRANT
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movq C_SYMBOL_NAME(errno)@GOTPCREL(%rip), %rcx
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movq %rax, (%rcx)
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# else
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pushq %rax
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PUSH_ERRNO_LOCATION_RETURN
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call C_SYMBOL_NAME (BP_SYM (__errno_location)@PLT)
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POP_ERRNO_LOCATION_RETURN
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popq %rcx
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movq %rcx, (%rax)
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# endif
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#endif
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movq $-1, %rax
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ret
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#undef __syscall_error
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END (__syscall_error)
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